Jonathan L. Siddon, D.O.
NPI 1003194218ActiveIndividual· Internal Medicine· Gainesville, VA
Internal Medicine (D.O.) with Legacy Healthcare Services Inc and 1 other group, practicing in Gainesville, Virginia. Their prescriptions cost Medicare Part D more than their services did: $312,035 for 3,113 claims, against $116,803 paid for services in 2024. Novo Nordisk Inc was the largest of 8 companies reporting payments in 2025, $723.87 in all, mostly food and beverage. Lists Fauquier Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1003194218 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jul 22, 2011 |
| Last updated in NPPES | Apr 12, 2021 |
| Certified by provider | Apr 12, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 0102203729 | VA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (DC); Practitioner - Internal Medicine (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 299 |
|---|---|
| Services billed | 2,280 across 45 procedure codes |
| Paid by Medicare | $116,803 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,113 · 8,236 30-day fills |
|---|---|
| Patients | 303 |
| Total drug cost | $312,035 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Legacy Healthcare Services IncGreenville, SC · 3,223 clinicians
- Privia Medical Group, LLCFairfax, VA · 1,533 clinicians
Hospital affiliations
- Fauquier HospitalWarrenton, VA
- Inova Fairfax HospitalFalls Church, VA
- Uva Health Haymarket Medical CenterHaymarket, VA
- Uva Health Prince William Medical CenterManassas, VA
- Virginia Hospital CenterArlington, VA
Other facilities
- Five Star Home Health CareHome health agency · Chantilly, VA
Industry payments (Open Payments)
- 2025$723.87 · 37 payments from 8 companies
- 2024$777.11 · 36 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $241.80 | 11 |
| Abbvie Inc. | $179.19 | 11 |
| Lilly USA, LLC | $79.26 | 4 |
| Astrazeneca Pharmaceuticals LP | $72.81 | 4 |
| Bayer Healthcare Pharmaceuticals Inc. | $45.40 | 2 |
What the 2025 payments were for
- Food and Beverage$691.60 · 36 payments
- Education$32.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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